Added download settings and optimized the downloader system with concurrency.

ptlinux/news.py

@@ -95,6 +95,17 @@ def fetch_news_image(
 	return _fetch_png_image(article.image_url, cache_path, timeout_seconds, opener)
 
 
+def read_cached_news_image(
+	article: NewsArticle,
+	cache_directory: Path,
+) -> bytes | None:
+	"""Read article artwork without contacting the network."""
+
+	if article.image_url is None:
+		return None
+	return _read_png(_image_cache_path(cache_directory, article))
+
+
 def fetch_official_logo(
 	cache_path: Path,
 	*,
@@ -106,6 +117,12 @@ def fetch_official_logo(
 	return _fetch_png_image(OFFICIAL_LOGO_URL, cache_path, timeout_seconds, opener)
 
 
+def read_cached_official_logo(cache_path: Path) -> bytes | None:
+	"""Read the official logo cache without contacting the network."""
+
+	return _read_png(cache_path)
+
+
 def _fetch_png_image(
 	url: str,
 	cache_path: Path,